Finding the best underfloor heating in Auckland comes down to choosing an installer who understands both the system and the floor it is going under. The businesses below supply and install electric under-tile cable and hydronic in-slab systems for bathrooms, kitchens, renovations and new builds across the Auckland region, and several also handle thermostat replacements and repairs on existing systems. Heatwell and Heat a Room lead the list as dedicated underfloor heating specialists.
1Heatwell
Heatwell is a dedicated underfloor heating business working out of Forrest Hill on the North Shore, installing across the greater Auckland region from Rodney through to Franklin. The company has been installing since 2000 and has developed its own exclusive Pro Series heating cable and HT4 thermostat designed around New Zealand building methods. It suits homeowners who want a specialist rather than a general trade, along with DIY installers buying cable and thermostats through the online shop.
Services
- Full electric underfloor heating installation for homes and commercial floors
- Underfloor heating thermostat replacement on existing systems
- Installation into apartment buildings and retirement villages
- Supply of Pro Series and Gold Series heating cable and heating kits nationwide
- Free quoting from a floor plan or a square metre area
Highlights
- Installing underfloor heating across Auckland since 2000
- Exclusive in-house Pro Series cable and HT4 thermostat range
- 25 year warranty on heating elements and 2 year warranty on thermostats
- Documented Best Practice installation system with ohms testing recorded at each stage
- Fibreglass mesh and self-levelling screed method adds only 4 to 5mm to floor height
Location & Contact
Name: Heatwell
Address: 258 Forrest Hill Road, Forrest Hill, Auckland 0620
Phone: 0800 392 853
Website: heatwell.co.nz
2Heat a Room
Heat a Room Limited is an Epsom based specialist in electric under-tile heating, supplying and installing thin heating cable that sits directly beneath the tiles without altering the finished floor level. The business is the sole New Zealand importer of InsOfloor, an insulating primer applied under the cable to reduce heat loss, and its heating system has been sold internationally since 1990. It is a practical choice for anyone warming bathrooms, kitchens or entrance ways during a build or a renovation.
Services
- Electric under-tile heating supply and installation
- Underfloor heating for new builds and renovation projects
- InsOfloor insulating primer application beneath the heating cable
- Seven day touch screen thermostat supply and setup
Highlights
- Sole New Zealand importer of the InsOfloor insulating sealant
- InsOfloor is stated to cut heat loss and running costs by up to 20 percent
- Heating cable made from teflon and copper, meeting IEC 60800 and class A mechanical strength
- Cable diameter of 1 to 1.5mm, so the floor level is not raised
- Installation and operating cost calculators published on the site
Location & Contact
Name: Heat a Room Limited
Address: Epsom, Auckland
Phone: 021 77 6868
Website: heataroom.co.nz
3Blueline Plumbing & Gasfitting
Blueline Plumbing and Gasfitting is a Glenfield based Master Plumbers member whose heating arm installs hydronic underfloor systems, circulating hot water through pipework laid beneath the floor. The team works across four different system types covering new slabs, overlay retrofits and existing joisted floors, and handles the design, pressure testing, manifold and commissioning as a single job. It suits Auckland homeowners after water based whole home heating rather than electric room by room warmth.
Services
- Hydronic underfloor heating design and installation
- Kiwi Inslab pipework laid directly into a new concrete slab
- VarioComp and EzyMix overlay systems for renovations
- Spreader plate installation for existing joisted floors
- Gasfitting, hot water and bathroom renovation work alongside heating
Highlights
- Registered Master Plumbers, Gasfitters and Drainlayers
- Heat source options spanning gas, oil and electric boilers, air source heat pumps and solar thermal panels
- Pressure testing carried out before the floor is closed up, then a full handover with system training
- After hours service available 24 hours a day, seven days a week
Location & Contact
Name: Blueline Plumbing & Gasfitting Ltd
Address: 5d/89 Ellice Road, Glenfield, Auckland 0629
Phone: 022 064 4336
Website: bluelineplumbing.co.nz
4Northern Lights Lighting and Electrical
Northern Lights Lighting and Electrical is an Onehunga based electrical firm that installs electric underfloor heating in bathrooms, kitchens and any other room that needs radiant heat. Its systems come with a programmable touch screen controller offering seven day or five/two day scheduling, with four time and four temperature settings each day. The team covers the full Auckland region, from Orewa and the North Shore through to Papakura in the south.
Services
- Electric underfloor heating installation in bathrooms, kitchens and living areas
- Touch screen programmable heating controller supply and setup
- Residential electrical installation and maintenance
- Free, no obligation quoting
Highlights
- Master Electrician quoting on every job
- Controller allows four time and four temperature settings per day, with stated energy savings of up to 30 percent
- Coverage across the full Auckland region, from Orewa and the North Shore to Pukekohe and Papakura
Location & Contact
Name: Northern Lights Lighting and Electrical
Address: 300A Onehunga Mall, Onehunga, Auckland 1061
Phone: 0800 177 275
Website: northernlights.co.nz
5Grammar Electrical
Grammar Electrical is a Morningside based, family owned electrical company founded by the Dempsey family in 1948, with underfloor heating one of its residential service lines. Every underfloor heating installation is carried out by Registered Residential Electricians, and because the same team fits heat pumps and home ventilation, it can compare heating options across a whole house before quoting. It suits homeowners heating a single room, a renovation or a new build who want one contractor covering design, installation and compliance.
Services
- Underfloor heating installation and maintenance for single rooms, renovations and new builds
- Heat pump installation
- Home ventilation systems
- General residential electrical installation and repairs
- EV charger installation
Highlights
- Family owned and trading since 1948
- Large team of Registered Master Electricians
- Underfloor heating installs carried out by Registered Residential Electricians
- Emergency electrician available 24/7, with online booking and published hourly rates
Location & Contact
Name: Grammar Electrical
Address: 27 Morningside Drive, Morningside, Auckland 1025
Phone: 09 884 6611
Website: grammarelectrical.co.nz
Underfloor Heating in Auckland at a Glance
| Business | Based in | Highlight |
|---|---|---|
| Heatwell | Forrest Hill | Installing underfloor heating across Auckland since 2000 |
| Heat a Room | Auckland | Sole New Zealand importer of the InsOfloor insulating sealant |
| Blueline Plumbing & Gasfitting | Glenfield | Registered Master Plumbers, Gasfitters and Drainlayers |
| Northern Lights Lighting and Electrical | Onehunga | Master Electrician quoting on every job |
| Grammar Electrical | Morningside | Family owned and trading since 1948 |
How to Choose the Right Underfloor Heating in Auckland
- Decide between electric and hydronic first. Electric cable suits single rooms, bathrooms and retrofits where floor height matters, while hydronic in-slab pipework suits whole home heating in a new build or a major renovation.
- Check who actually does the work. Electric systems must be connected by a registered electrician, and hydronic systems bring in gasfitting and plumbing trades, so ask which parts are in-house and which are subcontracted.
- Ask what warranty covers the element and what covers the installation. Cable warranties are commonly far longer than thermostat warranties, and some are conditional on the installer following a documented process.
- Confirm the installation method and the depth it adds. A screed and mesh system, a mat system and an in-slab system all change floor build-up differently, which matters if you are matching levels to an existing floor.
- Match the system to your flooring and insulation. Tile and stone transfer heat best, thick carpet and solid timber are more restrictive, and without insulation beneath the element the running cost climbs.
Frequently Asked Questions About Auckland Underfloor Heating
How much does underfloor heating cost to install in Auckland?
Cost depends on the system type, the area being heated and how much floor preparation is needed, so no single figure applies. Electric under-tile heating is quoted per square metre and is the cheaper entry point for a bathroom or a kitchen, while hydronic in-slab systems carry a much higher upfront cost because they involve pipework, a heat source and a manifold. Several installers on this page quote free from a floor plan, and two publish running cost calculators, which is the quickest way to get a realistic number for your own floor.
What is the difference between electric and hydronic underfloor heating?
Electric systems run a resistance cable or mat directly beneath the floor covering and convert electricity straight into heat, which makes them fast to warm up and simple to retrofit. Hydronic systems circulate warm water through pipework in or under the floor, heated by a boiler or an air to water heat pump, and are usually specified for whole home heating where the running cost over a large area matters more than the installation cost.
Can underfloor heating be retrofitted into an existing Auckland home?
Yes. Electric cable or mat systems are the usual retrofit choice because they add only a few millimetres to floor height and go in whenever the floor covering is being replaced. On the hydronic side, overlay systems that sit on top of an existing slab, and spreader plates that fit between existing joists, both avoid the need to pour a new slab.
Does underfloor heating meet the Healthy Homes heating standard?
It can, but the test is about the main living room rather than the technology. A rental property must have a fixed heater that can reach and hold the required temperature in the main living area, so an underfloor system covering only a bathroom will not satisfy it. Full details of what landlords must provide are set out by Tenancy Services.
What flooring works with underfloor heating?
Tile, stone and polished concrete conduct heat best and are the most common pairing. Engineered wood, vinyl and some carpets can also be used, though thick carpet and heavy underlay insulate the floor and reduce output, and solid timber can move as the floor warms and cools. Ask your installer to confirm compatibility before the flooring is ordered, because the decision is difficult to reverse once the floor is down.
Do I need a building consent for underfloor heating?
Most standalone electric under-tile installations in an existing room do not need consent, but work forming part of a larger renovation, a new slab, or a system involving a gas heat source may well do. Insulation and energy efficiency requirements for heated floors sit in clause H1 of the New Zealand Building Code, published by the Ministry of Business, Innovation and Employment. Auckland Council is the consent authority for the region, so check with them before work starts.
How long does an underfloor heating installation take?
A single bathroom or kitchen in electric cable is usually a short job, often completed in a day or two once the floor is level and ready, with the electrician returning to connect the thermostat. Whole home hydronic systems run considerably longer because the pipework has to be laid, pressure tested and then screeded or covered before the floor finish goes down, and the timing has to fit around the wider build programme.
Who is allowed to connect an underfloor heating system?
The final electrical connection of an electric system, including the thermostat, must be done by a registered electrical worker, and hydronic work involving gas or plumbing requires the relevant certifying tradesperson. You can check whether an electrician holds current registration through the Electrical Workers Registration Board public register.
How We Chose the Best Underfloor Heating in Auckland
Every business in this guide was found by searching for underfloor heating in Auckland, then checked against its own website. Names, addresses and phone numbers are taken from the business’s own site rather than a directory feed, so what you see here is what they publish themselves. We also check that each one is actually based in or genuinely serving Auckland, rather than a national operator running a local landing page. A business with no website of its own is not listed, because there is no primary source to verify it against.